Coupling for reinforced-concrete pipes.



0. H. WILSON. COQPLING I'OB. RBNFORGED CONCRETE PIPBS APPLIOATQION FILE? DEU.14, 1910.

Patented Sept. 12,* 1911.

W/rNEssES manneke CHARLES I-IARRISOON 'Q'IILSGN7 0F REJD OAK,

IOWA.

COUPLING FOR REINEORCED-CONCRETE PIPES.

.To all whom it may concern:

Be it known that I, CHARLES H. Wiitsoiv,v

a citizen of the United States, and a'resident of Red Oak, in the county of Montgomery and State of Iowa, have invented a new andl improved Coupling for Reinforced- Concrete Pipes, of which the following is a. full, clear, and exact description.

My invention relates to a coupling means for uniting the reinforcements in` adjacent concrete reinforced pipes.

An object of my invention is to provide a n'ew and improved means for uniting two pipe sections together in such a vmanner that there will be a positive and tight joint between tlie different sections, and it has for a further object the disposition of` this coupling means so that they are not exposed to the weather and are thereby protected from any rusting action. I attain these objects by bending the ends of the longitudinal reinforcements into hooks and fastening the reinforcement of adjacent pipes by a U-shaped coupling means and pin connections. u A

With the above and other objects in View,

as will more fully hereinafterappear, the

present invention consists in certain'novel details of construction and arrangement of parts hereinafter fully described, illustrated inthe accompanying drawings and more particularly pointed out in the appended claims.

In the accompanying drawings forming part of this specification, the reference charactors of whichfindicate corresponding parts in the several figures, Figure 1 is an elevation of a preferred. embodiment of my invention, partly broken away to show my improved reinforcements; Fig. 2 is a trans- 'se sectional View, 'taken on the line 2-2 of Fig. l, and Fig. 3 is a detail perspective view, showing the reinforcement atY the end of two adjacent pipes, together withvthe coupling means. j"

The pipe section 1 has'exteiiding longitudinally therein and between the inner'l and outer faces a sei-ies of'sjmce'd-apart` longitudinal rein'tors'aing rods 2, extending bevoiid `one end of the pipe, as shown at 3, and bentback upon itself to form hooks 4. rthe opposite ends of these reinforcing rod-s Specification of Letters Patent. Application filed December 14,1910.

l Serial No. 597,329.

are bent into hooks 5 a short distance in from the opposite end' of the pipel. EX- tending between the hooks 5 on the ends of the reinforcing rods 2 and. the adjacent open end'of the pipe is aA series of radially-dis posed recesses, adapted to receive the'coupling means hereinafter described.

The several longitudinal reinforcing rods 2 are connected by means of circumferentially disposed, spaced apart bands 6,. the free-ends 7 of which are fastened tc one of the longitudinal gaging each of thehooks 5 of the longitudinal reinforcing -rods 2 are iJ-shaped coupling members 8, the crotches 9 of which engage the hooks 5. Thefree ends of these Ufshaped coupling means are bent back upon themselves at right angles to the plane of the side members 10, in order to form parallel hook member-S11. The projecting hooks L.tof the next succeeding pipe section 12 are inserted into the recesses atthe adjacent end of the-pipe section 1, anda key or pin 13 is inserted between the crotches of thehooks 4 and the crotches formed by the two bent over members 11, thereby irmly locking the pipe sections 1 and 12 together. These pins 13 are inserted through apertures 14 in: the

side of the pipe 1, which recesses may after! ward be filled up with the material of which the pipes are constructed, vthereby covering `up the coupling means, vprotecting it from the Weather and forming a firm, tight joint between the adjacent concrete sections. Y Having thus described my invention, what I claim as new and desire to secure by Letters' Patcntis:

1. in a lcoupling for reinforced pipes, reinforcing rods having hooked endsk spaced apart in alinement, a U-shaped coupling` Patented Sept. 12, 1911.

reinforcing rods' 2. En-

member engaging a rhook on one rod, hooks disposed parallel on said coupling member straddling the hook on the end of the other rod, and a piu passing through said lastmentioned hooks.

2. ln a means for connecting the reinforcements of :td jacent pipe sections, the adjacentends of said reinforcements having hooked cndsspaced apart, a ciiupling means between said ends, said means comprising a U-shaped member having a crotch engagii'g one 'of said hooked ends and having bentover members adapted to straddle the name to this specification in the presence of hooked end of an adjacent remforeel'nen., two Subscrlbmg wltnesses.

and a, pin inserted between said bent-over w Y v members and the sii-mddle end, whereby the CH'MULS HAIRISGN WLSON" 5 remfo'reements 1n the two plpes are looked Witnesses,

together.

, n T, PERSON, In testimony whereof I have-signed my E. L. ARTHUR, 

